“The Book,” as it’s been known, was designed by prolific Detroit architect Louis Kamper, and first opened in 1924. At the time it was the tallest hotel in the world—33 stories and more than 1,000 guest rooms. Its famed visitors over the years have included Lou Gehrig and Babe Ruth. Like other Detroit icons, the Book closed in the 80’s; in the mid-2000’s a plan was put into place to redevelop the hotel, and ground broke in 2007. Today, the building itself is worth seeing as you’re touring around Downtown regardless of where you’re staying in the city. For families, and for quick business trips, though, the Book Cadillac makes a really convenient, central hub.